Bluetooth: Make pairing notification cancellable

Add actions to the pairing service notification so the user can dismiss
the pairing request if they want to.

Add some more information to logs when the user takes an action.

Reformat the file to match android style.

Test: pair from a remote device, dismiss using the new actions
Bug: 36036358
Change-Id: Ie110044bd4caf465f454452737000f01e7430925
diff --git a/src/com/android/settings/bluetooth/BluetoothPairingService.java b/src/com/android/settings/bluetooth/BluetoothPairingService.java
index 41a5cce..980b150 100644
--- a/src/com/android/settings/bluetooth/BluetoothPairingService.java
+++ b/src/com/android/settings/bluetooth/BluetoothPairingService.java
@@ -37,119 +37,136 @@
  */
 public final class BluetoothPairingService extends Service {
 
-  private static final int NOTIFICATION_ID = android.R.drawable.stat_sys_data_bluetooth;
+    private static final int NOTIFICATION_ID = android.R.drawable.stat_sys_data_bluetooth;
 
-  private static final String TAG = "BluetoothPairingService";
+    private static final String ACTION_DISMISS_PAIRING =
+            "com.android.settings.bluetooth.ACTION_DISMISS_PAIRING";
 
-  private BluetoothDevice mDevice;
+    private static final String TAG = "BluetoothPairingService";
 
-  public static Intent getPairingDialogIntent(Context context, Intent intent) {
+    private BluetoothDevice mDevice;
 
-    BluetoothDevice device =
-        intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
-    int type = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT,
-        BluetoothDevice.ERROR);
-    Intent pairingIntent = new Intent();
-    pairingIntent.setClass(context, BluetoothPairingDialog.class);
-    pairingIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
-    pairingIntent.putExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, type);
-    if (type == BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION ||
-        type == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY ||
-        type == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN) {
-      int pairingKey = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY,
-          BluetoothDevice.ERROR);
-      pairingIntent.putExtra(BluetoothDevice.EXTRA_PAIRING_KEY, pairingKey);
-    }
-    pairingIntent.setAction(BluetoothDevice.ACTION_PAIRING_REQUEST);
-    pairingIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-    return pairingIntent;
-  }
-
-  private boolean mRegistered = false;
-  private final BroadcastReceiver mCancelReceiver = new BroadcastReceiver() {
-    @Override
-    public void onReceive(Context context, Intent intent) {
-      String action = intent.getAction();
-      if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
-        int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
-            BluetoothDevice.ERROR);
-        if ((bondState != BluetoothDevice.BOND_NONE) && (bondState != BluetoothDevice.BOND_BONDED)) {
-          return;
+    public static Intent getPairingDialogIntent(Context context, Intent intent) {
+        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+        int type = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT,
+                BluetoothDevice.ERROR);
+        Intent pairingIntent = new Intent();
+        pairingIntent.setClass(context, BluetoothPairingDialog.class);
+        pairingIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
+        pairingIntent.putExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, type);
+        if (type == BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION ||
+                type == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY ||
+                type == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN) {
+            int pairingKey = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY,
+                    BluetoothDevice.ERROR);
+            pairingIntent.putExtra(BluetoothDevice.EXTRA_PAIRING_KEY, pairingKey);
         }
-        Log.d(TAG, "Dismiss pairing for " + mDevice.getAddress() + " (" + mDevice.getName() + "), BondState: " + bondState);
-      } else {
-        Log.d(TAG, "Dismiss pairing for " + mDevice.getAddress() + " (" + mDevice.getName() + "), Cancelled.");
-      }
-      stopForeground(true);
-      stopSelf();
-    }
-  };
-
-  @Override
-  public void onCreate() {
-  }
-
-  @Override
-  public int onStartCommand(Intent intent, int flags, int startId) {
-    if (intent == null) {
-      Log.e(TAG, "Can't start: null intent!");
-      stopSelf();
-      return START_NOT_STICKY;
+        pairingIntent.setAction(BluetoothDevice.ACTION_PAIRING_REQUEST);
+        pairingIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        return pairingIntent;
     }
 
-    Resources res = getResources();
-    Notification.Builder builder = new Notification.Builder(this)
-        .setSmallIcon(android.R.drawable.stat_sys_data_bluetooth)
-        .setTicker(res.getString(R.string.bluetooth_notif_ticker));
+    private boolean mRegistered = false;
+    private final BroadcastReceiver mCancelReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
+                int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
+                        BluetoothDevice.ERROR);
+                if ((bondState != BluetoothDevice.BOND_NONE) && (bondState != BluetoothDevice.BOND_BONDED)) {
+                    return;
+                }
+            } else if (action.equals(ACTION_DISMISS_PAIRING)) {
+                Log.d(TAG, "Notification cancel " + mDevice.getAddress() + " (" +
+                        mDevice.getName() + ")");
+                mDevice.cancelPairingUserInput();
+            } else {
+                int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
+                        BluetoothDevice.ERROR);
+                Log.d(TAG, "Dismiss pairing for " + mDevice.getAddress() + " (" +
+                        mDevice.getName() + "), BondState: " + bondState);
+            }
+            stopForeground(true);
+            stopSelf();
+        }
+    };
 
-    PendingIntent pending = PendingIntent.getActivity(this, 0,
-        getPairingDialogIntent(this, intent), PendingIntent.FLAG_ONE_SHOT);
-
-    mDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
-
-    if (mDevice.getBondState() != BluetoothDevice.BOND_BONDING) {
-      Log.w(TAG, "Device " + mDevice + " not bonding: " + mDevice.getBondState());
-      stopSelf();
-      return START_NOT_STICKY;
+    @Override
+    public void onCreate() {
     }
 
-    String name = intent.getStringExtra(BluetoothDevice.EXTRA_NAME);
-    if (TextUtils.isEmpty(name)) {
-      BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
-      name = device != null ? device.getAliasName() : getString(android.R.string.unknownName);
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (intent == null) {
+            Log.e(TAG, "Can't start: null intent!");
+            stopSelf();
+            return START_NOT_STICKY;
+        }
+
+        Resources res = getResources();
+        Notification.Builder builder = new Notification.Builder(this)
+                .setSmallIcon(android.R.drawable.stat_sys_data_bluetooth)
+                .setTicker(res.getString(R.string.bluetooth_notif_ticker));
+
+        PendingIntent pairIntent = PendingIntent.getActivity(this, 0,
+                getPairingDialogIntent(this, intent), PendingIntent.FLAG_ONE_SHOT);
+
+        PendingIntent dismissIntent = PendingIntent.getBroadcast(this, 0,
+                new Intent(ACTION_DISMISS_PAIRING), PendingIntent.FLAG_ONE_SHOT);
+
+        mDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+
+        if (mDevice != null && mDevice.getBondState() != BluetoothDevice.BOND_BONDING) {
+            Log.w(TAG, "Device " + mDevice + " not bonding: " + mDevice.getBondState());
+            stopSelf();
+            return START_NOT_STICKY;
+        }
+
+        String name = intent.getStringExtra(BluetoothDevice.EXTRA_NAME);
+        if (TextUtils.isEmpty(name)) {
+            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+            name = device != null ? device.getAliasName() : res.getString(android.R.string.unknownName);
+        }
+
+        Log.d(TAG, "Show pairing notification for " + mDevice.getAddress() + " (" + name + ")");
+
+        Notification.Action pairAction = new Notification.Action.Builder(0,
+                res.getString(R.string.bluetooth_device_context_pair_connect), pairIntent).build();
+        Notification.Action dismissAction = new Notification.Action.Builder(0,
+                res.getString(android.R.string.cancel), dismissIntent).build();
+
+        builder.setContentTitle(res.getString(R.string.bluetooth_notif_title))
+                .setContentText(res.getString(R.string.bluetooth_notif_message, name))
+                .setContentIntent(pairIntent)
+                .setDefaults(Notification.DEFAULT_SOUND)
+                .setColor(getColor(com.android.internal.R.color.system_notification_accent_color))
+                .addAction(pairAction)
+                .addAction(dismissAction);
+
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
+        filter.addAction(BluetoothDevice.ACTION_PAIRING_CANCEL);
+        filter.addAction(ACTION_DISMISS_PAIRING);
+        registerReceiver(mCancelReceiver, filter);
+        mRegistered = true;
+
+        startForeground(NOTIFICATION_ID, builder.getNotification());
+        return START_REDELIVER_INTENT;
     }
 
-    Log.d(TAG, "Show pairing notification for " + mDevice.getAddress() + " (" + name + ")");
-
-    builder.setContentTitle(res.getString(R.string.bluetooth_notif_title))
-        .setContentText(res.getString(R.string.bluetooth_notif_message, name))
-        .setContentIntent(pending)
-        .setDefaults(Notification.DEFAULT_SOUND)
-        .setColor(getColor(com.android.internal.R.color.system_notification_accent_color));
-
-    IntentFilter filter = new IntentFilter();
-    filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
-    filter.addAction(BluetoothDevice.ACTION_PAIRING_CANCEL);
-    registerReceiver(mCancelReceiver, filter);
-    mRegistered = true;
-
-    startForeground(NOTIFICATION_ID, builder.getNotification());
-    return START_REDELIVER_INTENT;
-  }
-
-  @Override
-  public void onDestroy() {
-    if (mRegistered) {
-      unregisterReceiver(mCancelReceiver);
-      mRegistered = false;
+    @Override
+    public void onDestroy() {
+        if (mRegistered) {
+            unregisterReceiver(mCancelReceiver);
+            mRegistered = false;
+        }
+        stopForeground(true);
     }
-    stopForeground(true);
-  }
 
-  @Override
-  public IBinder onBind(Intent intent) {
-    // No binding.
-    return null;
-  }
-
+    @Override
+    public IBinder onBind(Intent intent) {
+        // No binding.
+        return null;
+    }
 }